/*
 * Copyright (C) 2011-2021 Intel Corporation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * Neither the name of Intel Corporation nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
#include "DEFS.h"

	/*
	 * void* __memcpy_verw(void *dst, const void *src)
	 * 
	 */

ENTRY(__memcpy_verw)
	RETGUARD_SETUP(__memcpy_verw, r10)
	movb (%rsi), %al
	sub $8, %rsp
	mov %ds, (%rsp)
	verw (%rsp)
	movb %al, (%rdi)
	mfence
	lfence
	add $8, %rsp
	movq %rdi, %rax
	RETGUARD_CHECK(__memcpy_verw, r10)
	ret
END_STRONG(__memcpy_verw)

	/*
	 * void* __memcpy_8a(void *dst, const void *src)
	 *
	 */
ENTRY(__memcpy_8a)
	RETGUARD_SETUP(__memcpy_8a, r10)
	movq (%rsi), %rax
	movq %rax, (%rdi)
	movq %rdi, %rax
	RETGUARD_CHECK(__memcpy_8a, r10)
	ret
END_STRONG(__memcpy_8a)
